I'm going to make a chili and I thought about trying stewed beef cubes. I've never tried this before and have read that to cook stewed beef correctly I need to cook them slow and low for 2-4 hours. If I"m doing this in a chili when do I put the meat in? First? since it takes so long? If I put in in first what do I put it in with, just the tomato sauce? Lastly can I marinate the meat in an acid to help break it down? or will that change the flavor of my chili?